Oxford Advanced Learner’s Dictionary, 9th edition online version
The idiom dictionary is compiled from the Cambridge International Dictionary of Idioms and the Cambridge Dictionary of American Idioms.
English-Russian Nuclear Energy Dictionary
Oxford Primary English Dictionary, an Illustrated Dictionary for Starters (with sounds and pictures)
Oxford University Press.
Encyclopaedia Britannica Online
Longman Thesaurus of American English (LTAE)
Простой англо-русский словарь (типа Freelang)
Русско-английский медицинский словарь “Oxford”
The Penguin English Dictionary 3rd, 2007
Michael Swan. Practical English Usage. Fourth edition
Dictionary of Architecture and Construction
Edited by Cyril M. Harris, Ph.D., Professor Emeritus of Architecture in the Graduate School of Architecture, Planning, and Preservation at Columbia University
Cambridge British Grammar Dictionary
Black’s Medical Dictionary, 43rd Edition
Chambers Dictionary 13th Edition
The single-volume international English dictionary with the widest coverage of all the riches of the English language. Clear, accurate and occasionally witty definitions, with the latest new words from science, technology and contemporary culture.
This 13th Edition reflects the changes in our language, with special attention paid to new words that have emerged. The 13th Edition includes over 290,000 distinct words, compounds, phrases and derived forms.